Improvement in attaching hubs to axles



WILLIAM L. WILLIAMS.

Improvement in Attaching Hubs to AxIes.l

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l WILLIAM L. WILLIAMS, on NEW Yonx, N. Y.

IMPROVEMENT IN ATTACHING HUBS TO AXLES.

Specification forming part of Letters Patent No. 122,506, dated January2, 1872.

y coming loose and shaking off, and at the same time a friction isproduced that tends to hold the nut in position and prevent itsunscrewing. This improvement is to be distinguished from the leather andother elastic washers introduced in the pipes of axles to retain thelubrieating material. In my improvement the elastic material is onlysubjected to a direct pressure and not to wear and friction, and the nutis held from turning by friction due to compression of an India-rubberring.

In the drawing, Figure 1 is a longitudinal section of the pipe and axle,and Fig. 2 is an elevation of the pipe separately.

The axle c and pipe b are to be of any ordinary size and character, butadapted to my improved attachment. The pipe b is made with a screw, 2,at its inner end and a flange, 3. The nut o screws upon 2, and has acylinder, 4, inclosing between itself and the flange 3 the India-rubberring df, which is expanded as the nut o is screwed up, therebyproducing1 a sufiicient friction upon the cylinder 4 of the nut o toprevent said nut o turning by concussion or jar in use. The screw-thread2 may be removed adjacent to the iiange 3, Where the rubber ring d isapplied. Upon the axle a is the collar e to hold the hub in place, thenut c being at the inner side thereof; but between said nut c and collare is a metallic washer, i, and India-rubber washer o. Thereby thefriction and wear of the collar is taken upon the metallic washer iinstead of the nut c, and any concussion of the hub is relieved by thewasher o, of India rubber. In cases where the attachment for the hub isat the end ofthe axle, or where attachments are provided at both ends ofthe pipe b, `the parts are arranged as represented. The nut c screwsupon the end of the axle c, and contains a recess for the elastic washero and the metallic washer t', and

they serve the same purposes as they do in connection with the nut c. Inorder to employ the rubber ring d I inclose the same in the cylinder r,that bears against the washer i at one end, and against the pipe bV atthe other end, and the compression ofthe rubber ring d gives thefriction necessary for preventing the cylinder r turning; but a featheror flattened portion of the axle may be made use of, and a washer, l,should be introduced between the shoulder of the axle c and the rubberd. The screw at the end of the box b is turned, leaving the plaincylinder 5, so that the pressure or concussion applied in driving thepipe b into the hub shall not injure the screw-thread. The tube s with ascrew-cap is employed as a convenient means for lubrication, and saidtube is to pass through the wooden portion of the hub. The surface ofthe pipe bis provided with inclined ribs k k, forming screw-sections,that serve to hold the pipe more firmly in the hub than the straightribs heretofore employed.. The cylinder r is set up by the nut c as theparts Wear, and the rubber d prevents the parts binding or shaking loosein use.

I claim as my inventionl. The elastic ring d confined between the flange3 on the pipe b and the nut c so as to be expanded against thecylindrical portion 4 of said nut c, and thereby retain the nut andprevent its working loose, as set forth.

2. The elastic rubber washer o in a recess in the nut, protected by thewasher t, as and for the purposes set forth.

3. The cylinder 5 at the end of the pipe b for protecting the screw 2 inforcing the pipe into the hub as set forth.

4. 'Ihe inclined ribs k upon the outside of the pipe b, for the purposesset forth.

5. rIhe cylinder 1" abutting against the end of the box b, and having aflange between the elastic ring d and nut c so as to confine said ringd, as set forth.

Signed by me this 5th day of October, A. D. 1871.

Witnesses: W. L. WILLIAMS.

GEO. T. PINOKNEY,

GHA's. H. SMITH. (31)

